Invoices - Migrating from Desktop Pro to Online Advance

You can purchase a 3rd party service to migrate data with up to 3 custom fields to QB Online.

how much does this cost,  please provide a link to this app and also the process to trial this 3rd party app prior to migrating.  I believe most business would like to see that this can be done prior to migrating to ensure this 3rd party app can achieve what use to be part of QuickBooks.   

How much does this cost,  please provide a link to this app and also the process to trial this 3rd party app prior to migrating.   I believe most business would like to see that this can be done prior to migrating.  This will ensure this 3rd party app can achieve what use to be part of QuickBooks.  

You need to contact @Fiat Lux - ASIA to purchase their conversion service (not an app).